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1.Solve the following

A) A bus starts from the stop and takes 50sec to get the speed of 10m/s.If the mass of the bus along with the passengers is 10000kg, calculate the force applied by the engine of bus to push the bus at a speed of 10m/s.

b) A vehicle having mass equal to 1000kg is running with a speed of 10m/s.After applying the force of 1000N for 10sec. what will happen to the speed of the vehicle?

c)Find the recoil velocity of a gun having mass equal to 8kg, if a bullet of 25gm aquires the velocity of 400m/s after firing from the gun.

d)A girl of 30kg mass is running with a velocity of 2m/s.She jumps over a stationary cart of 3kg while running.Find the velocity of the cart after jumping of boy.

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by angelmathew

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